Submission #1301711

#TimeUsernameProblemLanguageResultExecution timeMemory
1301711keremSateliti (COCI20_satellti)C++20
110 / 110
825 ms64048 KiB
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define emb emplace_back
#define fr first
#define sc second
#define all(x) x.begin(),x.end()
#define sp << " " <<
#define N 1000
#define inf 1e9
typedef pair<int,int> ii;
typedef tuple<int,int,int> iii;

vector<int> sufarr(int n,int m,vector<int> v,bool Case){
	vector<int> p,c,pn,cn;
	p.assign(n*m,0);
	c.assign(n*m,0);
	pn.assign(n*m,0);
	cn.assign(n*m,0);
	
	vector<int> cnt;
	cnt.assign(n*m,0);
	for(int i=0;i<n*m;i++)
		cnt[v[i]]++;
	for(int i=1;i<n*m;i++)
		cnt[i]+=cnt[i-1];
	for(int i=n*m-1;i>=0;i--)
		p[--cnt[v[i]]]=i;
	c[p[0]]=0;
	int difn=1;
	for(int i=1;i<n*m;i++){
		if(v[p[i-1]]!=v[p[i]])
			difn++;
		c[p[i]]=difn-1;
	}
	
	auto ff=[&m](int x,int k){
		if(m-x%m>k) return x+k;
		else return x+k-m;
	};
	for(int k=1;k<m;k<<=1){
		for(int i=0;i<n*m;i++){
			pn[i]=p[i]-k;
			if(p[i]%m<k)
				pn[i]+=m;
		}
		cnt.assign(difn,0);
		for(int i=0;i<n*m;i++)
			cnt[c[i]]++;
		for(int i=1;i<difn;i++)
			cnt[i]+=cnt[i-1];
		for(int i=n*m-1;i>=0;i--)
			p[--cnt[c[pn[i]]]]=pn[i];
		cn[p[0]]=0;
		difn=1;
		for(int i=1;i<n*m;i++){
			ii cur={c[p[i]],c[ff(p[i],k)]};
			ii pre={c[p[i-1]],c[ff(p[i-1],k)]};
			if(cur!=pre)
				difn++;
			cn[p[i]]=difn-1;
		}
		swap(c,cn);
	}
	if(Case) return p;
	else return c;
}
void solve(){
	int n,m;
	cin >> n >> m;
	char stl[n][m];
	vector<int> a;
	a.assign(n*m,0);
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			cin >> stl[i][j];
			a[i*m+j]=(stl[i][j]=='.'?1:0);
		}
	}
	vector<int> p=sufarr(n,m,a,0);
	for(int i=0;i<m;i++)
		for(int j=0;j<n;j++)
			a[i*n+j]=p[j*m+i];
	int start=sufarr(m,n,a,1)[0];
	int x=start%n,y=start/n;
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++)
			cout << stl[(i+x)%n][(j+y)%m];
		cout << "\n";
	}
}     
int32_t main(){
	cout << fixed << setprecision(0);
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);cout.tie(NULL);
 
	int test=1;
	//~ cin >> test;
	while(test--){
		solve();
	}
}
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